Base | Representation |
---|---|
bin | 10111100100000… |
… | …000000001110111 |
3 | 1000112211222212021 |
4 | 113210000001313 |
5 | 1302200011041 |
6 | 103120534011 |
7 | 12540051553 |
oct | 2744000167 |
9 | 1015758767 |
10 | 395313271 |
11 | 193164791 |
12 | b0481307 |
13 | 63b902a2 |
14 | 3a704863 |
15 | 24a89cd1 |
hex | 17900077 |
395313271 has 6 divisors (see below), whose sum is σ = 408179616. Its totient is φ = 382454100.
The previous prime is 395313263. The next prime is 395313277. The reversal of 395313271 is 172313593.
It is a happy number.
It is not a de Polignac number, because 395313271 - 23 = 395313263 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (395313277) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108916 + ... + 112486.
It is an arithmetic number, because the mean of its divisors is an integer number (68029936).
Almost surely, 2395313271 is an apocalyptic number.
395313271 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
395313271 is a deficient number, since it is larger than the sum of its proper divisors (12866345).
395313271 is an frugal number, since it uses more digits than its factorization.
395313271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7173 (or 3602 counting only the distinct ones).
The product of its digits is 17010, while the sum is 34.
The square root of 395313271 is about 19882.4865396660. The cubic root of 395313271 is about 733.9173107086.
The spelling of 395313271 in words is "three hundred ninety-five million, three hundred thirteen thousand, two hundred seventy-one".
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